bloom-layout/example/node_modules/acorn/bin/run_test262.js

layout components used in bloom packages

const fs = require("fs")
const path = require("path")
const run = require("test262-parser-runner")
const parse = require("..").parse

const unsupportedFeatures = [
  "BigInt",
  "class-fields",
  "class-fields-private",
  "class-fields-public",
  "optional-catch-binding",
  "regexp-lookbehind",
  "regexp-named-groups",
  "regexp-unicode-property-escapes"
];

run(
  (content, {sourceType}) => parse(content, {sourceType, ecmaVersion: 9}),
  {
    testsDirectory: path.dirname(require.resolve("test262/package.json")),
    skip: test => (test.attrs.features && unsupportedFeatures.some(f => test.attrs.features.includes(f))),
    whitelist: fs.readFileSync("./bin/test262.whitelist", "utf8").split("\n").filter(v => v)
  }
)